How To Fix PPEACT403 - Object with predecessor-successor relatshp cannot be an assignment obj.

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEACT - Messages for iPPE ACT Application (Activities)

• Message number: 403

• Message text: Object with predecessor-successor relatshp cannot be an assignment obj.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPEACT403 - Object with predecessor-successor relatshp cannot be an assignment obj. ?

  The SAP error message PPEACT403 indicates that there is an issue with the relationship between objects in a project or production planning context, specifically regarding predecessor-successor relationships. This error typically arises when you attempt to create or modify a relationship between objects that are not compatible with the expected assignment types.
  Cause:
  The error occurs when:
  
  You are trying to establish a predecessor-successor relationship between objects that are not valid for such a relationship. For example, you might be trying to link a task to a resource or an object that cannot logically have a predecessor-successor relationship.
  The objects involved in the relationship are not of the correct type (e.g., trying to link a material to a task).
  There may be a configuration issue in the system that defines which objects can have relationships with each other.
  
  Solution:
  To resolve the PPEACT403 error, you can take the following steps:
  
  
  Check Object Types: Ensure that the objects you are trying to link are of compatible types. For example, if you are linking tasks, make sure both are tasks and not a mix of tasks and resources.
  
  
  Review Relationship Types: Verify that the relationship type you are trying to create is valid for the objects involved. Refer to the SAP documentation or configuration settings to understand which relationships are allowed.
  
  
  Correct Configuration: If you suspect a configuration issue, check the settings in the SAP system that define the relationships between different object types. You may need to consult with your SAP administrator or a functional consultant.
  
  
  Use Valid Assignment Objects: Ensure that you are using valid assignment objects for the predecessor-successor relationship. This may involve changing the object you are trying to link or modifying the relationship type.
  
  
  Consult Documentation: Refer to SAP help documentation or community forums for specific guidance on the types of objects and relationships that are supported in your version of SAP.
  
  
  Testing: After making changes, test the relationship creation again to ensure that the error no longer occurs.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Training and Documentation: Review training materials or documentation related to project planning and production scheduling in SAP to better understand how to manage object relationships.
  
  By following these steps, you should be able to identify the cause of the PPEACT403 error and implement a solution to resolve it.